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Originally Posted by leathermang
That is a good answer..
' a welding gas ' may not be safe for this.... even Oxygen under pressure can cause an explosion..
let us know more..
we do not want you to get hurt..
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It would be a good idea to define the gas ( in a later post our guy said 75 Argon / 25 CO2 )
Quote:
Originally Posted by leathermang
Argon and Nitrogen are noble gases and great for pressure testing an AC system..
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This is so wrong. According the the Google machine, The six naturally occurring noble gases that occur naturally are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and the radioactive radon (Rn)
Nitrogen isn't on the list
Quote:
Originally Posted by leathermang
A lot of people use CO2 even though I do not like it... for no particular reason other than it is part oxygen ...
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Dihydrogen Monoxide has oxygen in it also, so dumping some on a fire will make it flare up using your logic.
I use CO2 carbon dioxide to pressure test AC systems because I keep it for MIG welding rusty metal and as a portable "air" source for air tools and such. If you use it for inflating tires, it will leak out at a faster rate due to the molecules being smaller than nitrogen. ( Nitrogen makes up ~ 75% of the air we breathe. )